2024 International Workshop on Urban Ecological Security and Sustainability, Fudan University
(work in progress in preparation of presentation in China in July 2024).

[PROVIDING FOR UNDERGROUND RAINWATER RETENTION IN A MIXED USE CITY-BLOCK BUILDING 2 H Street, SOUTH BOSTON] Sandro A. Carella, AIA, LEED, CPHC phius Assistant Professor, Suffolk University Art and Design 8 Ashburton Place Boston, MA 02108


center of openings (manhole covers that will eventually be coincident with top of slab) were used as scan points. This strategy naturally creates a blank area immediately around the camera location. Drawings will later be examined in section.

scan imagery allows convenient sectional interrogation of site. This view shows how site is bounded on the west by H Street (reverse section shown) and on the east by Vicksburg Street

section through pavement where no sidewalk yet exists allows examination of precisely where the stair will meet the proposed sidewalk.
Since H Street slopes north-south the riser-tread combination of the stair must be carefully calculated in advance so its concrete underpinning can be correctly placed.